Properties of the Number 30538

Thirty Thousand Five Hundred Thirty-Eight

Basics

Value: 30537 → 30538 → 30539

Parity: even

Prime: No

Previous Prime: 30529

Next Prime: 30539

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 2 × 15269

Divisors: 1, 2, 15269, 30538

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 111011101001010

Octal: 73512

Duodecimal: 1580A

Hexadecimal: 774a

Square: 932569444

Square Root: 174.7512517837855

Classification

Fibonacci: No

Bell Number: No

Factorial Number: No

Regular Number: No

Perfect Number: No

Special

Kaprekar Constant: No

Munchausen Constant: No

Armstrong Number: No

Kaprekar Number: No

Catalan Number: No

Vampire Number: No

Taxicab Number: No

Super Prime: No

Friedman Number: No

Fermat Number: No

Cullen Number: No

OEIS Sequences

G.f. A(x) satisfies A(x) = (1 + x / sqrt(A(x))) / (1 - x). A366403

Semiprimes in A033951. A113691

Indices of records in A347113. A347308

Numbers k such that the continued fraction for sqrt(k) has period 95. A20434

Primes which are a concatenation of some permutation of the first 5 primes. A177275

a(n) = (2ⁿ+2)*(2ⁿ+4)*(4ⁿ+9·2ⁿ+38)/720. A30538

Triangle read by rows: T(n,k) = n!/((n mod k)!*(k-(n mod k))!*(ceiling(n/k)!^{n mod k})*(floor(n/k)!^{k-(n mod k}))), n >= 1, n >= k >= 1, the number of ways of dividing n labeled items into k unlabeled boxes as evenly as possible. A308624